| Patents for F04C 29 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups (16,981) |
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| 03/23/2004 | US6708520 Scroll compressor and refrigerating system using ammonia group refrigerant |
| 03/18/2004 | WO2004022977A1 Speed control for compressors |
| 03/18/2004 | WO2004022974A1 Seal-leak detector arrangement for compressors and other equipment |
| 03/18/2004 | WO2004022932A1 Muffler |
| 03/18/2004 | US20040052660 Electric compressor |
| 03/18/2004 | US20040050081 Screw refrigerating apparatus |
| 03/18/2004 | DE19942686B4 Spiralkompressor und Herstellungsverfahren eines Spiralkompressors A scroll compressor and a scroll compressor manufacturing method |
| 03/18/2004 | DE10335637A1 Scroll compressor for supplying compressed gas to electrode of fuel cell, has recess formed at inner peripheral wall of fixed lapping, to correspond with outer peripheral wall of rotary lapping |
| 03/18/2004 | DE10242139A1 Schraubenverdichter Screw compressor |
| 03/18/2004 | DE10115648B4 Zweistufige Schraubenkompressoranlage und Verfahren zu ihrer Steuerung Two-stage screw compressor system and methods for their control |
| 03/18/2004 | CA2494955A1 Seal-leak detector arrangement for compressors and other equipment |
| 03/17/2004 | EP1398518A2 Drive shaft coupling device with oil supply |
| 03/17/2004 | EP1398509A2 Vacuum pump |
| 03/17/2004 | EP1398507A2 Multistage Roots-type vacuum pump |
| 03/17/2004 | EP1398506A2 Hermetic multistage vacuum pump |
| 03/17/2004 | CN1482365A Vorticity compression pump |
| 03/17/2004 | CN1482364A 压缩机 Compressor |
| 03/16/2004 | US6705849 Discharge porting design for screw compressor |
| 03/16/2004 | US6705842 Dynamic attenuator of discharge noise from rotary vacuum machines |
| 03/11/2004 | WO2004020833A1 Inlet piece for a liquid-injected compressor element |
| 03/11/2004 | WO2004020832A1 Discharge portion for screw compressor with tangential flow guide cusp |
| 03/11/2004 | US20040048131 Seal-leak detector arrangement for compressors and other equipment |
| 03/11/2004 | US20040047755 Vacuum pump |
| 03/11/2004 | US20040047754 Oil shield as part of crankcase for a scroll compressor |
| 03/11/2004 | US20040045307 Hybrid compressor system |
| 03/10/2004 | EP1396640A2 Screw compressor |
| 03/10/2004 | EP1396636A2 Fluid pump system |
| 03/10/2004 | EP1395756A1 Screw compressor with switched reluctance motor |
| 03/10/2004 | CN1481471A Fluid power transfer device |
| 03/10/2004 | CN1480788A Analyzing system of exposuring device, analyzing method, and program, and semiconductor element mfg. method |
| 03/10/2004 | CN1141533C Refrigerator |
| 03/09/2004 | US6702558 Twin screw rotors and displacement machines containing the same |
| 03/05/2004 | CA2439510A1 Oil shield as part of crankcase for a scroll compressor |
| 03/04/2004 | WO2004018878A1 Compressor with capacity control |
| 03/04/2004 | US20040042921 Discharge porting for screw compressor with tangential flow guide cusp |
| 03/04/2004 | US20040042920 Scroll-type fluid machine |
| 03/04/2004 | US20040040339 Refrigerant cycling device and compressor using the same |
| 03/04/2004 | US20040040332 Screw compressor |
| 03/03/2004 | EP1394479A2 Refrigerant cycling device and compressor |
| 03/03/2004 | EP1394418A2 Vane compressor |
| 03/03/2004 | EP1394417A2 Rotary vane gas compressor |
| 03/03/2004 | EP1392979A1 Cylinder assembly of compressor |
| 03/03/2004 | EP1392974A1 Suction muffler for a reciprocating hermetic compressor |
| 03/03/2004 | EP1194692B1 Hermetic motor-driven compressor |
| 03/02/2004 | US6700273 Gas transfer machine |
| 03/02/2004 | US6699023 Multi-stage vacuum pump |
| 03/02/2004 | US6699022 Vacuum exhaust apparatuses and vacuum exhaust methods |
| 02/26/2004 | WO2004016997A1 Oil carry-over prevention from helium gas compressor |
| 02/26/2004 | WO2004016950A1 Compressor |
| 02/26/2004 | US20040037730 Single-screw compressor |
| 02/26/2004 | US20040037727 Pump comprising a water supply |
| 02/26/2004 | US20040037711 Oil free screw compressor |
| 02/26/2004 | US20040035468 Discharge valve and compressor using the same |
| 02/26/2004 | DE19912482B4 Spiralverdichter Scroll compressor |
| 02/25/2004 | EP1163450B1 Pump for generating pressure or negative pressure |
| 02/25/2004 | CN1478033A Device for emptying food storage container which can be sealed by means of valve |
| 02/25/2004 | CN1139728C Sealed compressor driven by motor |
| 02/24/2004 | US6695602 Bacterial growth inhibition in a circulation system comprising a compressor |
| 02/24/2004 | US6695601 Self-balanced compressor crankshaft |
| 02/24/2004 | US6695600 Scroll compressor |
| 02/19/2004 | WO2004015351A1 Method and apparatus for phase change enhancement |
| 02/19/2004 | US20040033153 Fluid transport system and method therefor |
| 02/19/2004 | US20040033151 Compressor having oil returning apparatus |
| 02/19/2004 | DE3745098B4 Kompressor der Spiralbauart Scroll type compressor |
| 02/19/2004 | DE10228894A1 Rotary piston fan for cooker has 2- or 3-vane rotary piston(s) that works in conjunction with drive, is at least partly helical along drive axes and is hollow at least in some regions of interior |
| 02/18/2004 | CN2603863Y Carcase of acetate fibre spinning pump with preferable sealing performance |
| 02/18/2004 | CN2603862Y Closed compressor |
| 02/18/2004 | CN2603861Y 压缩机 Compressor |
| 02/18/2004 | CN2603860Y 涡轮压缩机 Turbo compressor |
| 02/18/2004 | CN2603859Y 涡轮压缩机 Turbo compressor |
| 02/18/2004 | CN1475673A Turbo machine having dual volume ratio |
| 02/18/2004 | CN1138925C Scroll machine with discharge duct |
| 02/18/2004 | CN1138920C Hermetic compressor |
| 02/17/2004 | US6692242 Multi-cylinder rotary compressor |
| 02/17/2004 | US6692205 Compressor incorporated with motor and its cooling jacket |
| 02/17/2004 | US6691823 Suction muffler in reciprocating compressor |
| 02/12/2004 | US20040030142 Method for producing n-alkoxy-n-alkylamides |
| 02/12/2004 | US20040027790 Protective cover mounting apparatus for a hermetic compressor |
| 02/12/2004 | DE19942685B4 Spiralkompressor Scroll compressor |
| 02/12/2004 | DE19519841B4 Flügelzellenpumpe Vane pump |
| 02/12/2004 | DE10333536A1 Electric compressor for cooling cycle device, has oil separator of lubricating oil from working fluid in compressor stage output region, oil retention chamber, return flow path to low pressure side |
| 02/11/2004 | CN1474060A Vortex compressor |
| 02/11/2004 | CN1474059A Vortes compressor |
| 02/11/2004 | CN1474058A 封闭式压缩机 Hermetic compressors |
| 02/11/2004 | CN1474055A Protective cover mounting device for closed type compressor |
| 02/11/2004 | CN1138072C High pressure side rotary compressor with motor bearing lubrication |
| 02/11/2004 | CN1138071C Rotary compressor bearing with double conicity |
| 02/10/2004 | US6688868 Screw compressor injected with water |
| 02/10/2004 | US6688867 Rotary blower with an abradable coating |
| 02/10/2004 | US6688864 Oil leak prevention structure of vacuum pump |
| 02/10/2004 | US6687992 Assembly method for hermetic scroll compressor |
| 02/05/2004 | WO2004011809A1 Horizontal rotary-type compressor |
| 02/05/2004 | WO2004011808A1 Compressor |
| 02/05/2004 | US20040022659 Vane pump having volume variable pump chambers communicatable with inlet and outlet |
| 02/05/2004 | US20040022658 Check valve retainer for a scroll compressor |
| 02/05/2004 | US20040022646 Compressor |
| 02/04/2004 | EP1387132A1 Apparatus having refrigeration cycle |
| 02/04/2004 | EP1387131A1 Apparatus having refrigeration cycle |
| 02/04/2004 | EP0861982B1 A scroll-type fluid displacement compression apparatus having a sliding plate thrust bearing |
| 02/04/2004 | CN2602193Y Long teeth and short teeth expanded pumping rate multiple facing series geared pump using large tooth depth |